EP 3123162 B1 20191106 - ULTRASONIC GAS LEAK DETECTORS AND TESTING METHODS
Title (en)
ULTRASONIC GAS LEAK DETECTORS AND TESTING METHODS
Title (de)
ULTRASCHALL-GASLECKDETEKTOREN UND PRÜFVERFAHREN
Title (fr)
DÉTECTEURS DE FUITE DE GAZ PAR ULTRASONS ET PROCÉDÉS DE TEST
Publication
Application
Priority
- US 201461970808 P 20140326
- US 201414336399 A 20140721
- US 2015016966 W 20150220
Abstract (en)
[origin: US2015276540A1] An ultrasonic gas leak detector and test method, configured to discriminate the ultrasound generated by a pressurized gas leak into the atmosphere from ultrasound generated by man-made ultrasonic sources. In an exemplary embodiment an ultrasonic gas leak detector is able to identify a remote ultrasonic test source as a known test source and to initiate a test sequence instead of alarm. An output function generates detector outputs in dependence on the test mode initiation. The ultrasonic gas leak detector may also identify various other man-made ultrasonic sources as being neither gas leaks nor remote test sources but as nuisance or hostile sources to be identified as such. The test method utilizes a narrowband test source at a known ultrasonic frequency to ensonify the detector.
IPC 8 full level
G01N 29/14 (2006.01); G01M 3/00 (2006.01); G01M 3/24 (2006.01)
CPC (source: CN EP US)
G01M 3/007 (2013.01 - CN EP US); G01M 3/24 (2013.01 - CN EP US); G01N 29/14 (2013.01 - CN EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2015276540 A1 20151001; US 9506833 B2 20161129; CN 106104246 A 20161109; CN 106104246 B 20200918; EP 3123162 A1 20170201; EP 3123162 B1 20191106; WO 2015148024 A1 20151001
DOCDB simple family (application)
US 201414336399 A 20140721; CN 201580015745 A 20150220; EP 15710329 A 20150220; US 2015016966 W 20150220